Programming 16F628 while connected to LCD

gregmcc said:

I've build a LCD clock using the schematic attached. The first time I program it using a Inchworm everything programs fine. If I recompile (mplab) and want to reprogram the PIC I keep getting errors. (verification failures)

I've done some fiddling and its to do with the PGM pin being connected to the LCD - if I disconnect the LCD it programs fine.

While this solution is ok I would like to program without disconnecting the pin all the time. I've tried a 10k resistor between the PIC pin10 and the LCD but no luck.

Whats the trick here to get it working?

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